Which of the following statements about the modern periodic table is NOT correct?

Select the correct combination of mathematical signs to replace the '@' signs and balance the given equation.

22 @ 6 @ 18 @ 17 @ 2

Given below an equation having four blanks you have to check from the alternatives which among the given is correct?

21 _ 51 _ 7 _ 12 _ 75

   By Interchanging the given two numbers which of the following equation will be correct?

1 and 6

If the ‘-’ and ‘×’ are interchanged, What will be the value of the following equation?

34 × 22 + 192 ÷ 12 – 8

 If ‘ > ’ means ‘plus’, then ' 55 > 24 $ 4 < 8 % 6 ' = ?

If ‘A’ means (÷), ‘B’ means (×), ‘C’ means (+), and ‘D’ means (-), then what is the value of the expression:

If "+" means "subtraction", "×" means "division", "÷" means "addition" and "–" means "multiplication", then solve 98 – 2 x 14 ÷ 5 – 7 + 40 .

A toy is sold for Rs. 800 at 60% profit when profit is calculated on selling price. Find the profit% on cost price?

Select the correct combination of the mathematical signs to replace the ‘@’ symbols in the below equation and thereby balance it: